Method and apparatus for disturbing voice signal by sound cancellation and masking

The present invention as the invention relates to a method and apparatus for attenuating a sound signal and the masking by disturbing the speech signal, a wired or wireless network, a method of attenuating the audio signal, and masking to disturb the speech signal according to one embodiment of the present invention receiving a method comprising: receiving an audio signal, feedback of the received one-step of generating a signal for masking the speech is divided into a predetermined size, and outputting the audio signal and output audio signal through the step of attenuating the feedback signal , and a step of outputting a sound perturbation combining said attenuated signal and the masking signal. Sound Attenuation (cancellation sound), the masking (masking), privacy